Steganography Of Spatial Color Image Based On LSB

The Internet has become the most convenient and effective communication medium.Information can be quickly spread to various fields,such as government agencies,the private sector,the military,and medical fields through Internet.However,in the past few decades,when official agencies and governments used multimedia data,they shared such data through public networks and the Internet,and threats such as eavesdropping and data tampering have emerged.Information security issues have attracted people's attention.As an important branch of information security,steganography uses digital media to protect information to better protect the transmission of secret information.In steganography,data is hidden in carrier media,such as image files,text files,video files,or audio files.This paper describes the main principles and research status of steganography and steganalysis algorithms for color images.At the same time,it analyzes related steganography algorithms and proposes some new steganography algorithms.The main work and innovations of this article are as follows:(1)Proposes a color image steganography scheme based on LTP texture features(CISL).The cover image is divided into three channels in this CISL method.In the green channel and the blue channel,the cover image is converted into local triple patterns(LTP).The LTP information of the green channel and the blue channel is stored in red channel.The number of embedded secret data required for the cover image in the green channel and the blue channel is determined according to the LTP.When embedding,a special scheme is used to hide the secret data from the selected pixel and the next value of the selected pixel(ie,pixel +1).The scheme has been tested on a set of color images with satisfactory results in terms of embedded capacity and stego image quality(such as PSNR)(2)Proposes an embedding technique based on cyclic chaos,which effectively embeds secret messages into color images.The cyclic chaos is divided into two parts: the chaotic function of generating seeds and the pseudo random number generator(PRNG).A pixel is found through the chaotic cycle system,and a three-bit secret message is embedded into the R,G,and B channels of the pixel through a specific embedding algorithm.Compared with other color image embedding methods,the proposed algorithm has higher visual quality and improved security.Finally,the work of the full text is summarized,and the next step in the research of spatial color image steganography based on LSB is prospected.